Disaster Prevention and Mitigation Index Assessment of Green Buildings Based on the Fuzzy Analytic Hierarchy Process

Abstract

Assessment systems for green buildings around the world have been developed over many years, but there is a lack of assessment elements for the disaster prevention and mitigation (DPM) capabilities of green buildings in many indicators. DPM indexes based on the four main aspects of structural safety, DPM design, facility settings, and resource utilization are proposed here with consideration to the complex natural disasters that occur in China (fires, earthquakes, floods, etc.) and relevant codes. Then, an assessment system for the DPM indexes of green buildings is established by the fuzzy analytic hierarchy process (FAHP) in order to evaluate the DPM ability of green buildings and to quantify the impact of different indexes on the DPM ability of green buildings; this system is also used to evaluate and compare DPM capability suggestions, taking two green buildings in South and North China as examples. The results show that the DPM capacities of the two green buildings were evaluated as good, but that the scores for the site planning and water-saving systems of the green building in South China were significantly lower—meaning that measures such as optimizing drainage systems, managing stormwater runoff, permeable paving, rainwater gardens, and installing rainwater harvesting equipment should be implemented. Then, the theory of the utilization rate of DPM conversion is put forward, providing a reference for the future development of green building DPM index systems.

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